Alcatel-Lucent 7750 SR Manual page 1369

auth-keychain
Syntax auth-keychain name
Context config>service>vprn>bgp
config>service>vprn>bgp>group
config>service>vprn>bgp>group>neighbor
Description This command configures the BGP authentication key for all peers.
The keychain allows the rollover of authentication keys during the lifetime of a session.
Default
no auth-keychain
Parameters
name — Specifies the name of an existing keychain, up to 32 characters, to use for the specified TCP
bfd-enable
Syntax [no] bfd-enable
Context config>router>bgp
config>router>bgp>group
config>router>bgp>group>neighbor
Description
This command enables the use of bi-directional forwarding (BFD) to control the state of the
associated protocol interface. By enabling BFD on a given protocol interface, the state of the protocol
interface is tied to the state of the BFD session between the local node and the remote node. The
parameters used for the BFD are set via the BFD command under the IP interface.
The no form of this command removes BFD from the associated BGP protocol peering.
Default
no bfd-enable
cluster
Syntax cluster cluster-id
no cluster
Context config>service>vprn>bgp
config>service>vprn>bgp>group
config>service>vprn>bgp>group>neighbor
Description
This command configures the cluster ID for a route reflector server.
Route reflectors are used to reduce the number of IBGP sessions required within an AS. Normally, all
BGP speakers within an AS must have a BGP peering with every other BGP speaker in an AS. A
route reflector and its clients form a cluster. Peers that are not part of the cluster are considered to be
non-clients.
When a route reflector receives a route, first it must select the best path from all the paths received. If
the route was received from a non-client peer, then the route reflector sends the route to all clients in
7750 SR OS Services Guide
session or sessions.
Virtual Private Routed Network Services
Page 1369